Soap Creek Watershed Site 68-77 Reservoir Report
Last Updated: December 6, 2025
Soap Creek Watershed Site 68-77 in Monroe, Iowa, is a local government-owned earth dam constructed in 2005 by the USDA NRCS with a primary purpose of flood risk reduction along TR- Boyd Branch.
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Summary
This dam stands at a height of 33 feet and has a maximum storage capacity of 77 acre-feet, serving a drainage area of 0.3 square miles. With a surface area of 4.2 acres and a length of 560 feet, this dam plays a crucial role in mitigating flood risks in the area.
Managed by the Iowa Department of Natural Resources, Soap Creek Watershed Site 68-77 is regulated, inspected, and enforced to ensure its structural integrity and functionality. Classified as having a low hazard potential and a moderate risk level, this dam serves as a vital infrastructure for flood control in the region. Although the condition assessment is not rated, the dam's design and construction by the Natural Resources Conservation Service demonstrate a commitment to water resource management and climate resilience in the area.
Located in Selma, Iowa, this dam contributes to the overall water resource management strategy in the region, providing essential flood protection measures and demonstrating a proactive approach to climate change adaptation. With its controlled spillway and soil foundation, Soap Creek Watershed Site 68-77 exemplifies the collaboration between local government and federal agencies in safeguarding communities against potential water-related hazards. This site serves as a model for sustainable water resource management and climate resilience efforts in the area.
Year Completed |
2005 |
Dam Length |
560 |
Dam Height |
33 |
River Or Stream |
TR- BOYD BRANCH |
Primary Dam Type |
Earth |
Surface Area |
4.2 |
Drainage Area |
0.3 |
Nid Storage |
77 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Soap Creek Watershed Site 68-77